200kHz to 30MHz phase detection stratergies.

[zoulzubazz]

hey guys,

I am currently dealing with sinusoidal signals ranging between 200k and 30MHz and have to measure a phase difference of a few millidegrees between the two signals. I have read up on a few stratergies like using a PLL or IQ demodulation, but since we are working with such high frequencies it is best to obtain advice from experts here. thanks very much.

Best wishes
Joel

 

[kenambo]

Try analog phase frequency detector.

It works well for sine waves.

You can search Gilbert cell PFD for your purpose.

thanks